(61.83 in)Penelope-64 in/ Rex- 68 in/ Dirty Dawg- 72 in/ The shoe size of the suspect is small, so that means that the height of the person has to be the shortest. Therefor, Penelope is the one who did it.
Determination of a Hydrate
Purpose: The purpose is to find the formula of the hydrate of copper II sulfate.
Data Table:
Compound selected for analysis
CuSO4
Mass of crucible(g)
23.59 g
Mass of crucible and hydrated (wet) sample(g)
26.74 g
Mass of crucible and dehydrated (dry) sample-1st weighing(g)
25.57 g
Mass of hydrated (wet) sample(g)
3.15 g
Mass of crucible and dehydrated sample-2nd weighing(g)
25.55
Mass of crucible and dehydrated sample -if needed
Mass of dehydrated sample(g)
1.96 g
Mass of water evaporated(g)
1.19 g
Conclusion: The moles of hydrate are 5, so that means that the formula is CuSO4 * 5H2O. We got this by dividing the moles of water by the moles of dehydrate.
Drinking Water Contamination
Purpose: The purpose is to find out the rankings of different metals.
Conclusion:
Rank
Metal
1.
Aluminium
2.
Zinc
3.
Iron
4.
Lead
5.
Copper
The Effect of Concentration on Solubility
1. Add 70 mL of distilled water to a 100 mL beaker
2. Switch the Conductivity Probe to the 0-200 uS/cm range
3. Set up EasyData for the data collection
4. Before adding any drops of solution measure the conductivity of the solution
5. Add one drop of salt solution to the distilled water. Continue adding 1 drop at a time until you get to 8 drops. Then select stop
6. Analyze the relationship between the conductivity and volume
Determination of a Hydrate
Purpose: The purpose is to find the formula of the hydrate of copper II sulfate.
Data Table:
Drinking Water Contamination
Purpose: The purpose is to find out the rankings of different metals.
Conclusion: